Fix several warnings about uninitialized local variables

git-svn-id: trunk@45787 -

compiler/ogrel.pas

@@ -625,6 +625,7 @@ implementation
         c: Char;
       begin
         s:='';
+        c:=#0;
         if AtEoF then
           begin
             result:=false;
@@ -930,6 +931,8 @@ implementation
         FReader:=AReader;
         InputFileName:=AReader.FileName;
         Data:=CObjData.Create(InputFileName);
+        ExpectedAreas:=-1;
+        ExpectedSymbols:=-1;
         result:=false;
         s:='';
         repeat

compiler/z80/aasmcpu.pas

@@ -675,6 +675,7 @@ implementation
         var
           i: Integer;
         begin
+          result:=0;
           case maskcode of
             'dd':
               for i:=0 to insentry^.ops-1 do

compiler/z80/cgcpu.pas

@@ -921,6 +921,7 @@ unit cgcpu;
          optimize_op_const(size,op,a);
          mask:=$ff;
          shift:=0;
+         l1:=nil;
          case op of
            OP_NONE:
              begin
@@ -1711,6 +1712,7 @@ unit cgcpu;
         i : byte;
         tmpl: TAsmLabel;
       begin
+        tmpl:=nil;
         if size in [OS_8,OS_S8]then
           begin
             if cmp_op in [OC_EQ,OC_NE,OC_B,OC_AE] then