Issue 4632. Resolve all units before using next phase.

compiler/java/com/google/dart/compiler/DartCompiler.java

Index: compiler/java/com/google/dart/compiler/DartCompiler.java
diff --git a/compiler/java/com/google/dart/compiler/DartCompiler.java b/compiler/java/com/google/dart/compiler/DartCompiler.java
index ee98d2b83236dbb249b02dd2541154a8c2f70169..1788f05118d2e2d12ce45dc324425bbd770ce2b8 100644
--- a/compiler/java/com/google/dart/compiler/DartCompiler.java
+++ b/compiler/java/com/google/dart/compiler/DartCompiler.java
@@ -1279,17 +1279,17 @@ public class DartCompiler {
       LibraryUnit libUnit = entry.getValue();
       if (!resolvedLibs.containsKey(libUri) && libUnit != null) {
         newLibraries.put(libUri, libUnit);
-        for (DartUnit unit : libUnit.getUnits()) {
-          // Don't analyze diet units.
-          if (unit.isDiet()) {
-            continue;
-          }
-          for (DartCompilationPhase phase : phases) {
+        for (DartCompilationPhase phase : phases) {
+          // Run phase on all units, because "const" phase expects to have fully resolved library.
+          for (DartUnit unit : libUnit.getUnits()) {
+            if (unit.isDiet()) {
+              continue;
+            }
             unit = phase.exec(unit, context, compiler.getTypeProvider());
-            // Ignore errors. Resolver and TypeAnalyzer should be able to cope with
-            // resolution errors.
           }
-          // To help support the IDE, notify the listener that this unit is compiled.
+        }
+        // To help support the IDE, notify the listener that these unit were compiled.
+        for (DartUnit unit : libUnit.getUnits()) {
           context.unitCompiled(unit);
         }
       }