Bug 91081 [quick fix] Quick complete should introspect method change when return val from method
org.eclipse.jdt.ui.tests/ui/org/eclipse/jdt/ui/tests/quickfix/ReturnTypeQuickFixTest.java
options.put(DefaultCodeFormatterConstants.FORMATTER_TAB_CHAR, JavaCore.SPACE);
		options.put(DefaultCodeFormatterConstants.FORMATTER_TAB_SIZE, "4");
		options.put(JavaCore.COMPILER_PB_UNCHECKED_TYPE_OPERATION, JavaCore.IGNORE);
		JavaCore.setOptions(options);			
		IPreferenceStore store= JavaPlugin.getDefault().getPreferenceStore();
		store.setValue(PreferenceConstants.CODEGEN_ADD_COMMENTS, false);
		
		fJProject1= ProjectTestSetup.getProject();
		fSourceFolder= JavaProjectHelper.addSourceContainer(fJProject1, "src");
	}
	protected void tearDown() throws Exception {
		JavaProjectHelper.clear(fJProject1, ProjectTestSetup.getDefaultClasspath());
	}
	
	public void testSimpleTypeReturnDeclMissing() throws Exception {
		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
		StringBuffer buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("import java.util.Vector;\n");
		buf.append("public class E {\n");
		buf.append("    public foo() {\n");
		buf.append("        return (new Vector()).elements();\n");
		buf.append("    }\n");
		buf.append("}\n");
		ICompilationUnit cu= pack1.createCompilationUnit("E.java", buf.toString(), false, null);
		
		CompilationUnit astRoot= getASTRoot(cu);
		ArrayList proposals= collectCorrections(cu, astRoot);
		assertNumberOfProposals(proposals, 2);
		assertCorrectLabels(proposals);