move errors to Dsymbol

src/dsymbol.c

@@ -45,6 +45,7 @@ Dsymbol::Dsymbol()
     this->loc = 0;
     this->comment = NULL;
     this->scope = NULL;
+    this->errors = false;
 }
 
 Dsymbol::Dsymbol(Identifier *ident)
@@ -58,6 +59,7 @@ Dsymbol::Dsymbol(Identifier *ident)
     this->loc = 0;
     this->comment = NULL;
     this->scope = NULL;
+    this->errors = false;
 }
 
 int Dsymbol::equals(Object *o)

src/dsymbol.h

@@ -117,6 +117,7 @@ struct Dsymbol : Object
     unsigned char *comment;     // documentation comment for this Dsymbol
     Loc loc;                    // where defined
     Scope *scope;               // !=NULL means context to use for semantic()
+    bool errors;                // this symbol failed to pass semantic()
 
     Dsymbol();
     Dsymbol(Identifier *);

src/template.c

@@ -3346,7 +3346,6 @@ TemplateInstance::TemplateInstance(Loc loc, Identifier *ident)
     this->nest = 0;
     this->havetempdecl = 0;
     this->isnested = NULL;
-    this->errors = 0;
     this->speculative = 0;
 }
 
@@ -3375,7 +3374,6 @@ TemplateInstance::TemplateInstance(Loc loc, TemplateDeclaration *td, Objects *ti
     this->nest = 0;
     this->havetempdecl = 1;
     this->isnested = NULL;
-    this->errors = 0;
     this->speculative = 0;
 
     assert((size_t)tempdecl->scope > 0x10000);

src/template.h

@@ -1,6 +1,6 @@
 
 // Compiler implementation of the D programming language
-// Copyright (c) 1999-2011 by Digital Mars
+// Copyright (c) 1999-2012 by Digital Mars
 // All Rights Reserved
 // written by Walter Bright
 // http://www.digitalmars.com
@@ -284,7 +284,6 @@ struct TemplateInstance : ScopeDsymbol
     int nest;           // for recursion detection
     int havetempdecl;   // 1 if used second constructor
     Dsymbol *isnested;  // if referencing local symbols, this is the context
-    int errors;         // 1 if compiled with errors
     int speculative;    // 1 if only instantiated with errors gagged
 #ifdef IN_GCC
     /* On some targets, it is necessary to know whether a symbol