Bug 26641 No option to disable "Assignment ... has no effect"
2.1 M3 I am missing an option to disable the compiler warning upon assigning a variable to itself...
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/CompilerConfigurationBlock.java
private static final String PREF_PB_DUPLICATE_RESOURCE= JavaCore.CORE_JAVA_BUILD_DUPLICATE_RESOURCE;
	private static final String INTR_DEFAULT_COMPLIANCE= "internal.default.compliance"; 
	
	private static final String GENERATE= JavaCore.GENERATE;
	private static final String DO_NOT_GENERATE= JavaCore.DO_NOT_GENERATE;
	
	private static final String PRESERVE= JavaCore.PRESERVE;
	private static final String OPTIMIZE_OUT= JavaCore.OPTIMIZE_OUT;
	
	private static final String VERSION_1_1= JavaCore.VERSION_1_1;
	private static final String VERSION_1_2= JavaCore.VERSION_1_2;
	private static final String VERSION_1_3= JavaCore.VERSION_1_3;
	private static final String VERSION_1_4= JavaCore.VERSION_1_4;
	
	private static final String ERROR= JavaCore.ERROR;
	private static final String WARNING= JavaCore.WARNING;
	private static final String IGNORE= JavaCore.IGNORE;
	private static final String ABORT= JavaCore.ABORT;
	private static final String ENABLED= JavaCore.ENABLED;
	private static final String DISABLED= JavaCore.DISABLED;
	
	private static final String PRIORITY_HIGH= JavaCore.COMPILER_TASK_PRIORITY_HIGH;
	private static final String PRIORITY_NORMAL= JavaCore.COMPILER_TASK_PRIORITY_NORMAL;
	private static final String PRIORITY_LOW= JavaCore.COMPILER_TASK_PRIORITY_LOW;		
	
	private static final String DEFAULT= "default"; 
	private static final String USER= "user";	 
	private static String[] getAllKeys() {
		return new String[] {
			PREF_LOCAL_VARIABLE_ATTR, PREF_LINE_NUMBER_ATTR, PREF_SOURCE_FILE_ATTR, PREF_CODEGEN_UNUSED_LOCAL,