Fix MSVC warning C4702: unreachable code

Part of #66537.

scene/gui/base_button.cpp

@@ -264,7 +264,7 @@ bool BaseButton::is_hovered() const {
 BaseButton::DrawMode BaseButton::get_draw_mode() const {
 	if (status.disabled) {
 		return DRAW_DISABLED;
-	};
+	}
 
 	if (!status.press_attempt && status.hovering) {
 		if (status.pressed) {
@@ -273,8 +273,7 @@ BaseButton::DrawMode BaseButton::get_draw_mode() const {
 
 		return DRAW_HOVER;
 	} else {
-		/* determine if pressed or not */
-
+		// Determine if pressed or not.
 		bool pressing;
 		if (status.press_attempt) {
 			pressing = (status.pressing_inside || keep_pressed_outside);
@@ -291,8 +290,6 @@ BaseButton::DrawMode BaseButton::get_draw_mode() const {
 			return DRAW_NORMAL;
 		}
 	}
-
-	return DRAW_NORMAL;
 }
 
 void BaseButton::set_toggle_mode(bool p_on) {

scene/gui/rich_text_label.cpp

@@ -52,7 +52,7 @@ RichTextLabel::Item *RichTextLabel::_get_next_item(Item *p_item, bool p_free) co
 		} else if (p_item->E->next()) {
 			return p_item->E->next()->get();
 		} else {
-			//go up until something with a next is found
+			// Go up until something with a next is found.
 			while (p_item->parent && !p_item->E->next()) {
 				p_item = p_item->parent;
 			}
@@ -72,7 +72,7 @@ RichTextLabel::Item *RichTextLabel::_get_next_item(Item *p_item, bool p_free) co
 		} else if (p_item->E->next()) {
 			return p_item->E->next()->get();
 		} else {
-			//go up until something with a next is found
+			// Go up until something with a next is found.
 			while (p_item->type != ITEM_FRAME && !p_item->E->next()) {
 				p_item = p_item->parent;
 			}
@@ -84,8 +84,6 @@ RichTextLabel::Item *RichTextLabel::_get_next_item(Item *p_item, bool p_free) co
 			}
 		}
 	}
-
-	return nullptr;
 }
 
 RichTextLabel::Item *RichTextLabel::_get_prev_item(Item *p_item, bool p_free) const {
@@ -97,7 +95,7 @@ RichTextLabel::Item *RichTextLabel::_get_prev_item(Item *p_item, bool p_free) co
 		} else if (p_item->E->prev()) {
 			return p_item->E->prev()->get();
 		} else {
-			//go back until something with a prev is found
+			// Go back until something with a prev is found.
 			while (p_item->parent && !p_item->E->prev()) {
 				p_item = p_item->parent;
 			}
@@ -117,7 +115,7 @@ RichTextLabel::Item *RichTextLabel::_get_prev_item(Item *p_item, bool p_free) co
 		} else if (p_item->E->prev()) {
 			return p_item->E->prev()->get();
 		} else {
-			//go back until something with a prev is found
+			// Go back until something with a prev is found.
 			while (p_item->type != ITEM_FRAME && !p_item->E->prev()) {
 				p_item = p_item->parent;
 			}
@@ -129,8 +127,6 @@ RichTextLabel::Item *RichTextLabel::_get_prev_item(Item *p_item, bool p_free) co
 			}
 		}
 	}
-
-	return nullptr;
 }
 
 Rect2 RichTextLabel::_get_text_rect() {

scene/resources/animation.cpp

@@ -2102,11 +2102,9 @@ bool Animation::track_is_compressed(int p_track) const {
 			return bst->compressed_track >= 0;
 		} break;
 		default: {
-			return false; //animation does not really use transitions
+			return false; // Animation does not really use transitions.
 		} break;
 	}
-
-	ERR_FAIL_V(false);
 }
 
 void Animation::track_set_key_value(int p_track, int p_key_idx, const Variant &p_value) {

scene/resources/material.cpp

@@ -3123,8 +3123,6 @@ bool StandardMaterial3D::_set(const StringName &p_name, const Variant &p_value)
 		WARN_PRINT("Godot 3.x SpatialMaterial remapped parameter not found: " + String(p_name));
 		return true;
 	}
-
-	return false;
 }
 
 #endif // DISABLE_DEPRECATED

scene/resources/tile_set.cpp

@@ -1537,7 +1537,6 @@ Vector<Point2> TileSet::get_terrain_polygon(int p_terrain_set) {
 		}
 		return _get_half_offset_terrain_polygon(tile_size, overlap, tile_offset_axis);
 	}
-	return Vector<Point2>();
 }
 
 Vector<Point2> TileSet::get_terrain_peering_bit_polygon(int p_terrain_set, TileSet::CellNeighbor p_bit) {

scene/resources/visual_shader_particle_nodes.cpp

@@ -1130,31 +1130,38 @@ VisualShaderNodeParticleAccelerator::VisualShaderNodeParticleAccelerator() {
 // VisualShaderNodeParticleOutput
 
 String VisualShaderNodeParticleOutput::get_caption() const {
-	if (shader_type == VisualShader::TYPE_START) {
-		return "StartOutput";
-	} else if (shader_type == VisualShader::TYPE_PROCESS) {
-		return "ProcessOutput";
-	} else if (shader_type == VisualShader::TYPE_COLLIDE) {
-		return "CollideOutput";
-	} else if (shader_type == VisualShader::TYPE_START_CUSTOM) {
-		return "CustomStartOutput";
-	} else if (shader_type == VisualShader::TYPE_PROCESS_CUSTOM) {
-		return "CustomProcessOutput";
+	switch (shader_type) {
+		case VisualShader::TYPE_START:
+			return "StartOutput";
+		case VisualShader::TYPE_PROCESS:
+			return "ProcessOutput";
+		case VisualShader::TYPE_COLLIDE:
+			return "CollideOutput";
+		case VisualShader::TYPE_START_CUSTOM:
+			return "CustomStartOutput";
+		case VisualShader::TYPE_PROCESS_CUSTOM:
+			return "CustomProcessOutput";
+		default:
+			ERR_PRINT(vformat("Unexpected shader_type %d for VisualShaderNodeParticleOutput.", shader_type));
+			return "";
 	}
-	return String();
 }
 
 int VisualShaderNodeParticleOutput::get_input_port_count() const {
-	if (shader_type == VisualShader::TYPE_START) {
-		return 8;
-	} else if (shader_type == VisualShader::TYPE_COLLIDE) {
-		return 5;
-	} else if (shader_type == VisualShader::TYPE_START_CUSTOM || shader_type == VisualShader::TYPE_PROCESS_CUSTOM) {
-		return 6;
-	} else { // TYPE_PROCESS
-		return 7;
+	switch (shader_type) {
+		case VisualShader::TYPE_START:
+			return 8;
+		case VisualShader::TYPE_PROCESS:
+			return 7;
+		case VisualShader::TYPE_COLLIDE:
+			return 5;
+		case VisualShader::TYPE_START_CUSTOM:
+		case VisualShader::TYPE_PROCESS_CUSTOM:
+			return 6;
+		default:
+			ERR_PRINT(vformat("Unexpected shader_type %d for VisualShaderNodeParticleOutput.", shader_type));
+			return 0;
 	}
-	return 0;
 }
 
 VisualShaderNodeParticleOutput::PortType VisualShaderNodeParticleOutput::get_input_port_type(int p_port) const {

servers/physics_2d/godot_space_2d.cpp

@@ -1036,8 +1036,6 @@ void *GodotSpace2D::_broadphase_pair(GodotCollisionObject2D *A, int p_subindex_A
 		GodotBodyPair2D *b = memnew(GodotBodyPair2D(static_cast<GodotBody2D *>(A), p_subindex_A, static_cast<GodotBody2D *>(B), p_subindex_B));
 		return b;
 	}
-
-	return nullptr;
 }
 
 void GodotSpace2D::_broadphase_unpair(GodotCollisionObject2D *A, int p_subindex_A, GodotCollisionObject2D *B, int p_subindex_B, void *p_data, void *p_self) {

servers/rendering/renderer_rd/environment/fog.cpp

@@ -122,8 +122,6 @@ AABB Fog::fog_volume_get_aabb(RID p_fog_volume) const {
 			return AABB(Vector3(-1, -1, -1), Vector3(2, 2, 2));
 		}
 	}
-
-	return AABB();
 }
 
 Vector3 Fog::fog_volume_get_extents(RID p_fog_volume) const {

servers/rendering/renderer_rd/renderer_scene_render_rd.cpp

@@ -282,8 +282,6 @@ Ref<Image> RendererSceneRenderRD::environment_bake_panorama(RID p_env, bool p_ba
 		panorama->fill(panorama_color);
 		return panorama;
 	}
-
-	return Ref<Image>();
 }
 
 ////////////////////////////////////////////////////////////

servers/rendering/renderer_rd/storage_rd/particles_storage.cpp

@@ -1874,8 +1874,6 @@ AABB ParticlesStorage::particles_collision_get_aabb(RID p_particles_collision) c
 			return aabb;
 		}
 	}
-
-	return AABB();
 }
 
 Vector3 ParticlesStorage::particles_collision_get_extents(RID p_particles_collision) const {

servers/rendering/shader_language.cpp

@@ -4396,8 +4396,6 @@ bool ShaderLanguage::_is_operator_assign(Operator p_op) const {
 		default:
 			return false;
 	}
-
-	return false;
 }
 
 bool ShaderLanguage::_validate_varying_assign(ShaderNode::Varying &p_varying, String *r_message) {