Minify boolean and numeric literals in obfuscated mode (#10291)

Fixes #10281

Also cleans up some minor code style issues in the modified files.

Does NOT implement
* Infinity -> 1/0
* undefined -> void 0
* 1.2E100 -> 12E99

Author: zbynek

dev/core/src/com/google/gwt/dev/jjs/JavaToJavaScriptCompiler.java

@@ -151,6 +151,7 @@
 import com.google.gwt.dev.js.JsStackEmulator;
 import com.google.gwt.dev.js.JsStaticEval;
 import com.google.gwt.dev.js.JsSymbolResolver;
+import com.google.gwt.dev.js.JsToStringGenerationVisitor;
 import com.google.gwt.dev.js.JsUnusedFunctionRemover;
 import com.google.gwt.dev.js.JsVerboseNamer;
 import com.google.gwt.dev.js.SizeBreakdown;
@@ -772,7 +773,9 @@ private void generateJavaScriptCode(JavaToJavaScriptMap jjsMap, String[] jsFragm
           DefaultTextOutput out = new DefaultTextOutput(!options.isIncrementalCompileEnabled() &&
               options.getOutput().shouldMinimize());
           JsReportGenerationVisitor v = new JsReportGenerationVisitor(out, jjsMap,
-              options.isJsonSoycEnabled());
+              options.isJsonSoycEnabled(),
+              new JsToStringGenerationVisitor.PrintOptions(false,
+                  options.getOutput() == JsOutputOption.OBFUSCATED));
           v.accept(jsProgram.getFragmentBlock(i));
 
           StatementRanges statementRanges = v.getStatementRanges();

dev/core/src/com/google/gwt/dev/js/JsReportGenerationVisitor.java

@@ -56,8 +56,8 @@ public class JsReportGenerationVisitor extends
   private List<JsNode> parentStack = Lists.newArrayList();
 
   public JsReportGenerationVisitor(TextOutput out, JavaToJavaScriptMap map,
-      boolean needSourcemapNames) {
-    super(out, map);
+      boolean needSourcemapNames, PrintOptions options) {
+    super(out, map, options);
     this.out = out;
     this.needSourcemapNames = needSourcemapNames;
   }

dev/core/src/com/google/gwt/dev/js/JsSourceGenerationVisitor.java

@@ -36,10 +36,10 @@ public JsSourceGenerationVisitor(TextOutput out) {
   /**
    * Generate the output source code using short or long identifiers.
    *
-   * @param useLongIdents if true, emit all identifiers in long form
+   * @param options minification options
    */
-  public JsSourceGenerationVisitor(TextOutput out, boolean useLongIdents) {
-    super(out, useLongIdents);
+  public JsSourceGenerationVisitor(TextOutput out, PrintOptions options) {
+    super(out, options);
   }
 
   @Override

dev/core/src/com/google/gwt/dev/js/JsSourceGenerationVisitorWithSizeBreakdown.java

@@ -40,8 +40,8 @@ public class JsSourceGenerationVisitorWithSizeBreakdown extends JsSourceGenerati
   private final Map<JsName, Integer> sizeMap = new HashMap<JsName, Integer>();
 
   public JsSourceGenerationVisitorWithSizeBreakdown(TextOutput out,
-      JavaToJavaScriptMap javaToJavaScriptMap) {
-    super(out);
+      JavaToJavaScriptMap javaToJavaScriptMap, PrintOptions options) {
+    super(out, options);
     this.out = out;
     this.map = javaToJavaScriptMap;
   }