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
gd.horizontalSpan= 2;
		gd.widthHint= fPixelConverter.convertWidthInCharsToPixels(50);
		description.setLayoutData(gd);
		String label= JavaUIMessages.getString("CompilerConfigurationBlock.pb_unreachable_code.label"); 
		addComboBox(warningsComposite, label, PREF_PB_UNREACHABLE_CODE, errorWarningIgnore, errorWarningIgnoreLabels, 0);	
		
		label= JavaUIMessages.getString("CompilerConfigurationBlock.pb_invalid_import.label"); 
		addComboBox(warningsComposite, label, PREF_PB_INVALID_IMPORT, errorWarningIgnore, errorWarningIgnoreLabels, 0);
		label= JavaUIMessages.getString("CompilerConfigurationBlock.pb_unused_local.label"); 
		addComboBox(warningsComposite, label, PREF_PB_UNUSED_LOCAL, errorWarningIgnore, errorWarningIgnoreLabels, 0);
		label= JavaUIMessages.getString("CompilerConfigurationBlock.pb_overriding_pkg_dflt.label"); 
		addComboBox(warningsComposite, label, PREF_PB_OVERRIDING_PACKAGE_DEFAULT_METHOD, errorWarningIgnore, errorWarningIgnoreLabels, 0);			
		label= JavaUIMessages.getString("CompilerConfigurationBlock.pb_method_naming.label"); 
		addComboBox(warningsComposite, label, PREF_PB_METHOD_WITH_CONSTRUCTOR_NAME, errorWarningIgnore, errorWarningIgnoreLabels, 0);			
		label= JavaUIMessages.getString("CompilerConfigurationBlock.pb_hidden_catchblock.label"); 
		addComboBox(warningsComposite, label, PREF_PB_HIDDEN_CATCH_BLOCK, errorWarningIgnore, errorWarningIgnoreLabels, 0);
		
		label= JavaUIMessages.getString("CompilerConfigurationBlock.pb_unused_imports.label"); 
		addComboBox(warningsComposite, label, PREF_PB_UNUSED_IMPORT, errorWarningIgnore, errorWarningIgnoreLabels, 0);
		
		label= JavaUIMessages.getString("CompilerConfigurationBlock.pb_unused_parameter.label"); 
		addComboBox(warningsComposite, label, PREF_PB_UNUSED_PARAMETER, errorWarningIgnore, errorWarningIgnoreLabels, 0);
		label= JavaUIMessages.getString("CompilerConfigurationBlock.pb_static_access_receiver.label"); 
		addComboBox(warningsComposite, label, PREF_PB_STATIC_ACCESS_RECEIVER, errorWarningIgnore, errorWarningIgnoreLabels, 0);
		
		label= JavaUIMessages.getString("CompilerConfigurationBlock.pb_synth_access_emul.label"); 
		addComboBox(warningsComposite, label, PREF_PB_SYNTHETIC_ACCESS_EMULATION, errorWarningIgnore, errorWarningIgnoreLabels, 0);
		label= JavaUIMessages.getString("CompilerConfigurationBlock.pb_max_per_unit.label"); 
		Text text= addTextField(warningsComposite, label, PREF_PB_MAX_PER_UNIT);
		text.setTextLimit(6);