Reapply CL "Option to truncate integers to 64 bits, part 2"

runtime/vm/bigint_test.cc

Index: runtime/vm/bigint_test.cc
diff --git a/runtime/vm/bigint_test.cc b/runtime/vm/bigint_test.cc
index 8ccf464e2e19589a8822be19b1fcdc466ee8ba20..4644a4c3095849e0ad95dfd83cba8941f58a6771 100644
--- a/runtime/vm/bigint_test.cc
+++ b/runtime/vm/bigint_test.cc
@@ -10,6 +10,10 @@
 namespace dart {
 
 TEST_CASE(BigintSmi) {
+  if (Bigint::IsDisabled()) {
+    return;
+  }
+
   {
     const Smi& smi = Smi::Handle(Smi::New(5));
     const Bigint& bigint = Bigint::Handle(Bigint::NewFromInt64(smi.Value()));
@@ -65,6 +69,10 @@ TEST_CASE(BigintSmi) {
 }
 
 TEST_CASE(BigintInt64) {
+  if (Bigint::IsDisabled()) {
+    return;
+  }
+
   const int64_t kValue = 100000000;
   const int64_t kValue64 = kValue * kValue;
   Bigint& bigint = Bigint::Handle(Bigint::NewFromInt64(kValue));
@@ -79,6 +87,10 @@ TEST_CASE(BigintInt64) {
 }
 
 TEST_CASE(BigintUint64) {
+  if (Bigint::IsDisabled()) {
+    return;
+  }
+
   const Bigint& one = Bigint::Handle(Bigint::NewFromUint64(1));
   EXPECT(one.FitsIntoInt64());
   EXPECT(one.FitsIntoUint64());
@@ -92,6 +104,10 @@ TEST_CASE(BigintUint64) {
 }
 
 TEST_CASE(BigintDouble) {
+  if (Bigint::IsDisabled()) {
+    return;
+  }
+
   Bigint& bigint = Bigint::Handle(Bigint::NewFromInt64(5));
   EXPECT_EQ(5.0, bigint.AsDoubleValue());
 
@@ -224,6 +240,10 @@ TEST_CASE(BigintDouble) {
 }
 
 TEST_CASE(BigintHexStrings) {
+  if (Bigint::IsDisabled()) {
+    return;
+  }
+
   Zone* zone = Thread::Current()->zone();
   {
     const Bigint& bigint = Bigint::Handle(Bigint::NewFromCString("0x0"));
@@ -404,6 +424,10 @@ TEST_CASE(BigintHexStrings) {
 }
 
 TEST_CASE(BigintDecStrings) {
+  if (Bigint::IsDisabled()) {
+    return;
+  }
+
   Zone* zone = Thread::Current()->zone();
   {
     const Bigint& bigint = Bigint::Handle(Bigint::NewFromCString("0x0"));
@@ -528,6 +552,10 @@ static void TestBigintCompare(const char* a, const char* b, int compare) {
 }
 
 TEST_CASE(BigintCompare) {
+  if (Bigint::IsDisabled()) {
+    return;
+  }
+
   TestBigintCompare("0x0", "0x0", 0);
   TestBigintCompare("0x1", "0x1", 0);
   TestBigintCompare("-0x1", "-0x1", 0);
@@ -576,6 +604,10 @@ TEST_CASE(BigintCompare) {
 }
 
 TEST_CASE(BigintDecimalStrings) {
+  if (Bigint::IsDisabled()) {
+    return;
+  }
+
   Zone* zone = Thread::Current()->zone();
   {
     const Bigint& bigint = Bigint::Handle(Bigint::NewFromCString("0"));