emscripten: remove leading underscore in EM_JS function names, causes problems with LLVM upstream

sokol_app.h

@@ -1872,7 +1872,7 @@ EMSCRIPTEN_KEEPALIVE void _sapp_emsc_notify_keyboard_hidden(void) {
 #endif
 
 /* Javascript helper functions for mobile virtual keyboard input */
-EM_JS(void, _sapp_js_create_textfield, (void), {
+EM_JS(void, sapp_js_create_textfield, (void), {
     var _sapp_inp = document.createElement("input");
     _sapp_inp.type = "text";
     _sapp_inp.id = "_sokol_app_input_element";
@@ -1884,11 +1884,11 @@ EM_JS(void, _sapp_js_create_textfield, (void), {
     document.body.append(_sapp_inp);
 });
 
-EM_JS(void, _sapp_js_focus_textfield, (void), {
+EM_JS(void, sapp_js_focus_textfield, (void), {
     document.getElementById("_sokol_app_input_element").focus();
 });
 
-EM_JS(void, _sapp_js_unfocus_textfield, (void), {
+EM_JS(void, sapp_js_unfocus_textfield, (void), {
     document.getElementById("_sokol_app_input_element").blur();
 });
 
@@ -1901,19 +1901,19 @@ _SOKOL_PRIVATE void _sapp_emsc_update_keyboard_state(void) {
         /* create input text field on demand */
         if (!_sapp_emsc_input_created) {
             _sapp_emsc_input_created = true;
-            _sapp_js_create_textfield();
+            sapp_js_create_textfield();
         }
         /* focus the text input field, this will bring up the keyboard */
         _sapp.onscreen_keyboard_shown = true;
         _sapp_emsc_wants_show_keyboard = false;
-        _sapp_js_focus_textfield();
+        sapp_js_focus_textfield();
     }
     if (_sapp_emsc_wants_hide_keyboard) {
         /* unfocus the text input field */
         if (_sapp_emsc_input_created) {
             _sapp.onscreen_keyboard_shown = false;
             _sapp_emsc_wants_hide_keyboard = false;
-            _sapp_js_unfocus_textfield();
+            sapp_js_unfocus_textfield();
         }
     }
 }

sokol_audio.h

@@ -1228,7 +1228,7 @@ EMSCRIPTEN_KEEPALIVE int _saudio_emsc_pull(int num_frames) {
 #endif
 
 /* setup the WebAudio context and attach a ScriptProcessorNode */
-EM_JS(int, _saudio_js_init, (int sample_rate, int num_channels, int buffer_size), {
+EM_JS(int, saudio_js_init, (int sample_rate, int num_channels, int buffer_size), {
     Module._saudio_context = null;
     Module._saudio_node = null;
     if (typeof AudioContext !== 'undefined') {
@@ -1286,7 +1286,7 @@ EM_JS(int, _saudio_js_init, (int sample_rate, int num_channels, int buffer_size)
 });
 
 /* get the actual sample rate back from the WebAudio context */
-EM_JS(int, _saudio_js_sample_rate, (void), {
+EM_JS(int, saudio_js_sample_rate, (void), {
     if (Module._saudio_context) {
         return Module._saudio_context.sampleRate;
     }
@@ -1296,7 +1296,7 @@ EM_JS(int, _saudio_js_sample_rate, (void), {
 });
 
 /* get the actual buffer size in number of frames */
-EM_JS(int, _saudio_js_buffer_frames, (void), {
+EM_JS(int, saudio_js_buffer_frames, (void), {
     if (Module._saudio_node) {
         return Module._saudio_node.bufferSize;
     }
@@ -1306,10 +1306,10 @@ EM_JS(int, _saudio_js_buffer_frames, (void), {
 });
 
 _SOKOL_PRIVATE bool _saudio_backend_init(void) {
-    if (_saudio_js_init(_saudio.sample_rate, _saudio.num_channels, _saudio.buffer_frames)) {
+    if (saudio_js_init(_saudio.sample_rate, _saudio.num_channels, _saudio.buffer_frames)) {
         _saudio.bytes_per_frame = sizeof(float) * _saudio.num_channels;
-        _saudio.sample_rate = _saudio_js_sample_rate();
-        _saudio.buffer_frames = _saudio_js_buffer_frames();
+        _saudio.sample_rate = saudio_js_sample_rate();
+        _saudio.buffer_frames = saudio_js_buffer_frames();
         const int buf_size = _saudio.buffer_frames * _saudio.bytes_per_frame;
         _saudio.backend.buffer = (uint8_t*) SOKOL_MALLOC(buf_size);
         return true;

sokol_time.h

@@ -170,7 +170,7 @@ _SOKOL_PRIVATE int64_t int64_muldiv(int64_t value, int64_t numer, int64_t denom)
 #endif
 
 #if defined(__EMSCRIPTEN__)
-EM_JS(double, _stm_js_perfnow, (void), {
+EM_JS(double, stm_js_perfnow, (void), {
     return performance.now();
 });
 #endif
@@ -185,7 +185,7 @@ SOKOL_API_IMPL void stm_setup(void) {
         mach_timebase_info(&_stm.timebase);
         _stm.start = mach_absolute_time();
     #elif defined(__EMSCRIPTEN__)
-        _stm.start = _stm_js_perfnow();
+        _stm.start = stm_js_perfnow();
     #else
         struct timespec ts;
         clock_gettime(CLOCK_MONOTONIC, &ts);
@@ -204,7 +204,7 @@ SOKOL_API_IMPL uint64_t stm_now(void) {
         const uint64_t mach_now = mach_absolute_time() - _stm.start;
         now = int64_muldiv(mach_now, _stm.timebase.numer, _stm.timebase.denom);
     #elif defined(__EMSCRIPTEN__)
-        double js_now = _stm_js_perfnow() - _stm.start;
+        double js_now = stm_js_perfnow() - _stm.start;
         SOKOL_ASSERT(js_now >= 0.0);
         now = (uint64_t) (js_now * 1000000.0);
     #else