Added preprocessor support for GL_FRAGMENT_PRECISION_HIGH.
I will send the tests in a separate patch because I need to refactor the way compiler_tests are setup.
Review URL: https://codereview.appspot.com/7402051

git-svn-id: https://angleproject.googlecode.com/svn/branches/es3proto@2058 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/compiler/ParseHelper.h b/src/compiler/ParseHelper.h
index 9fb9f4d..26a3ea1 100644
--- a/src/compiler/ParseHelper.h
+++ b/src/compiler/ParseHelper.h
@@ -58,6 +58,7 @@
     const TType* currentFunctionType;  // the return type of the function that's currently being parsed
     bool functionReturnsValue;   // true if a non-void function has a return
     bool checksPrecisionErrors;  // true if an error will be generated when a variable is declared without precision, explicit or implicit.
+    bool fragmentPrecisionHigh;  // true if highp precision is supported in the fragment language.
     TString HashErrMsg;
     bool AfterEOF;
     TDiagnostics diagnostics;