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("        } catch (IOException e) {\n");
		buf.append("        }\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("import java.io.IOException;\n");
		buf.append("import java.text.ParseException;\n");				
		buf.append("public class E {\n");
		buf.append("    public void goo() throws IOException {\n");
		buf.append("    }\n");			
		buf.append("    public void foo() throws ParseException {\n");
		buf.append("        try {\n");		
		buf.append("            goo();\n");
		buf.append("        } catch (IOException e) {\n");
		buf.append("        }\n");
		buf.append("    }\n");
		buf.append("}\n");
		String expected2= buf.toString();
		
		assertEqualStringsIgnoreOrder(new String[] { preview1, preview2 }, new String[] { expected1, expected2 });	
	}
	
	public void testUnneededCatchBlockSingle() throws Exception {
		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
		StringBuffer buf= new StringBuffer();
		buf.append("package test1;\n");