[PATCH] [Clang Tidy]: Minor cleanups in readability-container-size-empty checker

[Gábor Horváth]

Hi alexfh,

Minor cleanups in readability-container-size-empty checker:
- Removed an unused header
- Simplified the custom ast_matchers

http://reviews.llvm.org/D7088

Files:
  clang-tidy/readability/ContainerSizeEmpty.cpp

Index: clang-tidy/readability/ContainerSizeEmpty.cpp
===================================================================
--- clang-tidy/readability/ContainerSizeEmpty.cpp
+++ clang-tidy/readability/ContainerSizeEmpty.cpp
@@ -13,7 +13,6 @@
 
 #include "clang/AST/ASTContext.h"
 #include "clang/ASTMatchers/ASTMatchers.h"
-#include "clang/ASTMatchers/ASTMatchersInternal.h"
 #include "clang/Lex/Lexer.h"
 
 using namespace clang::ast_matchers;
@@ -46,13 +45,8 @@
 
 namespace clang {
 namespace ast_matchers {
-AST_MATCHER_P(QualType, unqualifiedType, internal::Matcher<Type>,
-              InnerMatcher) {
-  return InnerMatcher.matches(*Node, Finder, Builder);
-}
+AST_MATCHER(QualType, isBoolType) { return Node->isBooleanType(); }
 
-AST_MATCHER(Type, isBoolType) { return Node.isBooleanType(); }
-
 AST_MATCHER(NamedDecl, stlContainer) {
   return isContainer(Node.getQualifiedNameAsString());
 }
@@ -78,12 +72,11 @@
                                 hasLHS(integerLiteral(equals(1)))))))
               .bind("SizeBinaryOp")),
       hasParent(implicitCastExpr(
-          hasImplicitDestinationType(unqualifiedType(isBoolType())),
+          hasImplicitDestinationType(isBoolType()),
           anyOf(
               hasParent(unaryOperator(hasOperatorName("!")).bind("NegOnSize")),
               anything()))),
-      hasParent(
-          explicitCastExpr(hasDestinationType(unqualifiedType(isBoolType())))));
+      hasParent(explicitCastExpr(hasDestinationType(isBoolType()))));
 
   Finder->addMatcher(
       memberCallExpr(

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