More co19 triage.

compiler/java/com/google/dart/compiler/resolver/CompileTimeConstantAnalyzer.java

Index: compiler/java/com/google/dart/compiler/resolver/CompileTimeConstantAnalyzer.java
diff --git a/compiler/java/com/google/dart/compiler/resolver/CompileTimeConstantAnalyzer.java b/compiler/java/com/google/dart/compiler/resolver/CompileTimeConstantAnalyzer.java
index 9974915e42728d147fef43ae1dd708d88881e87b..433f8f940a298497ed042cea1745a2018ebd6dea 100644
--- a/compiler/java/com/google/dart/compiler/resolver/CompileTimeConstantAnalyzer.java
+++ b/compiler/java/com/google/dart/compiler/resolver/CompileTimeConstantAnalyzer.java
@@ -52,6 +52,7 @@ import com.google.dart.compiler.common.HasSourceInfo;
 import com.google.dart.compiler.type.Type;
 import com.google.dart.compiler.type.TypeKind;
 
+import java.math.BigInteger;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
@@ -177,6 +178,9 @@ public class CompileTimeConstantAnalyzer {
           return type;
         }
         Element element = node.getElement();
+        if (Elements.isFunctionIdentical(element)) {
+          return boolType;
+        }
         if (element != null) {
           type = element.getType();
           if (type != null && TypeKind.of(type) != TypeKind.DYNAMIC) {
@@ -274,8 +278,10 @@ public class CompileTimeConstantAnalyzer {
         case DIV:
           checkMathExpression(x, lhs, rhs, lhsType, rhsType);
           break;
-        case MOD:
         case TRUNC:
+          reportExceptionIfZeroLiteral(x, rhs);
+          // pass-through
+        case MOD:
           if (checkNumber(lhs, lhsType) && checkNumber(rhs, rhsType)) {
             rememberInferredType(x, intType);
           }
@@ -295,6 +301,16 @@ public class CompileTimeConstantAnalyzer {
       }
       return null;
     }
+    
+    private void reportExceptionIfZeroLiteral(HasSourceInfo target, DartExpression e) {
+      if (e instanceof DartIntegerLiteral) {
+        DartIntegerLiteral literal = (DartIntegerLiteral) e;
+        if (literal.getValue().equals(BigInteger.ZERO)) {
+          context.onError(new DartCompilationError(target,
+              ResolverErrorCode.CONSTANTS_EVALUATION_EXCEPTION));
+        }
+      }
+    }
 
     private void checkMathExpression(DartBinaryExpression x,
                                      DartExpression lhs, DartExpression rhs,