Bug 37594 Quick fix for 'hidden variable'
When you get the compiler warning stating that you have a local variable in a method which is over-riding a field in your class, I would like to have the QuickFix option to rename the local variable and all its occurences in the method.
org.eclipse.jdt.ui.tests/ui/org/eclipse/jdt/ui/tests/quickfix/LocalCorrectionsQuickFixTest.java
buf.append("public class E {\n");
		buf.append("    public void foo(ConstClass constclass) {\n");
		buf.append("        ConstClass.staticField.flag= true;\n");
		buf.append("    }\n");
		buf.append("}\n");
		String expected1= buf.toString();
		
		proposal= (CUCorrectionProposal) proposals.get(1);
		String preview2= proposal.getCompilationUnitChange().getPreviewContent();
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public class ConstClass {\n");
		buf.append("     public StaticField staticField = new StaticField();\n");
		buf.append("}\n");
		String expected2= buf.toString();
		
		assertEqualStringsIgnoreOrder(new String[] { preview1, preview2 }, new String[] { expected1, expected2 });
	}
	
	
	public void testUnnecessaryInstanceof1() throws Exception {
		Hashtable hashtable= JavaCore.getOptions();
		hashtable.put(JavaCore.COMPILER_PB_UNNECESSARY_TYPE_CHECK, JavaCore.ERROR);
		JavaCore.setOptions(hashtable);
				
		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
		StringBuffer buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public class E {\n");
		buf.append("    public boolean foo(String b) {\n");