spread 'const' love to some variables. this considerably reduces the amount of dirty data around.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91002 91177308-0d34-0410-b5e6-96231b3b80d8

lib/AST/DeclarationName.cpp

@@ -338,7 +338,7 @@ void DeclarationName::setFETokenInfo(void *T) {
 
 DeclarationName DeclarationName::getUsingDirectiveName() {
   // Single instance of DeclarationNameExtra for using-directive
-  static DeclarationNameExtra UDirExtra =
+  static const DeclarationNameExtra UDirExtra =
     { DeclarationNameExtra::CXXUsingDirective };
 
   uintptr_t Ptr = reinterpret_cast<uintptr_t>(&UDirExtra);

lib/Driver/DriverOptions.cpp

@@ -14,7 +14,7 @@
 using namespace clang::driver;
 using namespace clang::driver::options;
 
-static OptTable::Info InfoTable[] = {
+static const OptTable::Info InfoTable[] = {
 #define OPTION(NAME, ID, KIND, GROUP, ALIAS, FLAGS, PARAM, \
                HELPTEXT, METAVAR)   \
   { NAME, HELPTEXT, METAVAR, Option::KIND##Class, FLAGS, PARAM, \

lib/Driver/Types.cpp

@@ -23,7 +23,7 @@ struct TypeInfo {
   ID PreprocessedType;
 };
 
-static TypeInfo TypeInfos[] = {
+static const TypeInfo TypeInfos[] = {
 #define TYPE(NAME, ID, PP_TYPE, TEMP_SUFFIX, FLAGS) \
   { NAME, FLAGS, TEMP_SUFFIX, TY_##PP_TYPE, },
 #include "clang/Driver/Types.def"
@@ -31,7 +31,7 @@ static TypeInfo TypeInfos[] = {
 };
 static const unsigned numTypes = sizeof(TypeInfos) / sizeof(TypeInfos[0]);
 
-static TypeInfo &getInfo(unsigned id) {
+static const TypeInfo &getInfo(unsigned id) {
   assert(id > 0 && id - 1 < numTypes && "Invalid Type ID.");
   return TypeInfos[id - 1];
 }

lib/Frontend/LangStandards.cpp

@@ -14,7 +14,7 @@ using namespace clang;
 using namespace clang::frontend;
 
 #define LANGSTANDARD(id, name, desc, features) \
-  static LangStandard Lang_##id = { name, desc, features };
+  static const LangStandard Lang_##id = { name, desc, features };
 #include "clang/Frontend/LangStandards.def"
 
 const LangStandard &LangStandard::getLangStandardForKind(Kind K) {

lib/Parse/ParseTemplate.cpp

@@ -522,7 +522,7 @@ Parser::ParseTemplateTemplateParameter(unsigned Depth, unsigned Position) {
     if (Default.isInvalid()) {
       Diag(Tok.getLocation(), 
            diag::err_default_template_template_parameter_not_template);
-      static tok::TokenKind EndToks[] = { 
+      static const tok::TokenKind EndToks[] = { 
         tok::comma, tok::greater, tok::greatergreater
       };
       SkipUntil(EndToks, 3, true, true);