some namespacing improvements

Change-Id: I95bd78340519bc1457385561b64c74e938b40bb2

compilerplugins/clang/bodynotinblock.hxx

@@ -25,7 +25,7 @@ class BodyNotInBlock
         void run();
         bool VisitFunctionDecl( FunctionDecl* declaration );
     private:
-        typedef std::vector< const Stmt* > StmtParents;
+        typedef vector< const Stmt* > StmtParents;
         void traverseStatement( const Stmt* stmt, StmtParents& parents );
         void checkBody( const Stmt* body, const StmtParents& parents, int stmtType, bool dontGoUp = false );
     };

compilerplugins/clang/compileplugin.cxx

@@ -21,8 +21,6 @@
 #include "sallogareas.hxx"
 #include "unusedvariablecheck.hxx"
 
-using namespace clang;
-
 namespace loplugin
 {
 

compilerplugins/clang/compileplugin.hxx

@@ -14,6 +14,8 @@
 #include <clang/AST/RecursiveASTVisitor.h>
 
 using namespace clang;
+using namespace llvm;
+using namespace std;
 
 namespace loplugin
 {

compilerplugins/clang/sallogareas.cxx

@@ -14,8 +14,6 @@
 
 #include <fstream>
 
-using namespace std;
-
 namespace loplugin
 {
 
@@ -50,7 +48,7 @@ bool SalLogAreas::VisitCallExpr( CallExpr* call )
         if( func->getNumParams() == 4 && func->getIdentifier() != NULL
             && ( func->getName() == "sal_detail_log" || func->getName() == "log" ))
             {
-            std::string qualifiedName = func->getQualifiedNameAsString();
+            string qualifiedName = func->getQualifiedNameAsString();
             if( qualifiedName == "sal_detail_log" || qualifiedName == "sal::detail::log" )
                 {
                 if( const StringLiteral* area = dyn_cast< StringLiteral >( call->getArg( 1 )->IgnoreParenImpCasts()))

compilerplugins/clang/sallogareas.hxx

@@ -31,7 +31,7 @@ class SalLogAreas
         void checkArea( StringRef area, SourceLocation location );
         void readLogAreas();
         const FunctionDecl* inFunction;
-        std::set< std::string > logAreas;
+        set< string > logAreas;
     };
 
 } // namespace

compilerplugins/clang/unusedvariablecheck.cxx

@@ -67,7 +67,7 @@ bool UnusedVariableCheck::VisitVarDecl( VarDecl* var )
             }
         if( !warn_unused )
             {
-            std::string n = type->getQualifiedNameAsString();
+            string n = type->getQualifiedNameAsString();
             // Check some common non-LO types.
             if( n == "std::string" || n == "std::basic_string"
                 || n == "std::list" || n == "std::__debug::list"