Fix several issues in the preprocessor:

- macro expansion of hexidecimal numbers 
 - give errors instead of warnings/silence on extra tokens after #endif, #else, etc.
 - give errors on reserved macro name use, reuse of argument, and redefinition with different whitespace presence
 - detect and give error for all cases of #elif and #else after #else



git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@23982 e7fa87d3-cd2b-0410-9028-fcbf551c1848

glslang/MachineIndependent/ShaderLang.cpp

@@ -499,7 +499,7 @@ bool CompileDeferred(
     lengths[0] = strlen(strings[0]);
     strings[numStrings + 1] = "\n int;";
     lengths[numStrings + 1] = strlen(strings[numStrings + 1]);
-    TInputScanner fullInput(numStrings + 2, strings, lengths, 1);
+    TInputScanner fullInput(numStrings + 2, strings, lengths, 1, 1);
 
     // Push a new symbol allocation scope that can for the shader's globals.
     symbolTable.push();