Remove some multitest runtime-tests.

Change-Id: I8fb69fecbe67236a4cbad9c1eb899a31a26a1ba3
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/410002
Reviewed-by: Martin Kustermann <[email protected]>
Commit-Queue: Lasse Nielsen <[email protected]>

Author: lrhn

runtime/tests/concurrency/stress_test_list.json

@@ -20,81 +20,77 @@ class C {
   const C.cc10(this.x, y) : assert(x < y, "$x < $y");
 }
 
-main() {
+void main() {
+  {
+    const x = 3;
+    const C.cc01(2, x);
+    const C.cc02(2, x);
+    const C.cc03(2, x);
+    const C.cc04(2, x);
+    const C.cc05(2, x);
+    const C.cc06(2, x);
+    const C.cc07(2, x);
+    const C.cc08(2, x);
+    const C.cc09(2, x);
+    const C.cc10(2, x);
+  }
+
   {
     const x = 1;
     const C.cc01(2, x);
     // [error column 5, length 18]
     // [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION
     //    ^
     // [cfe] Constant evaluation error:
-  }
-  {
-    const x = 1;
+
     const C.cc02(2, x);
     // [error column 5, length 18]
     // [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION
     //    ^
     // [cfe] Constant evaluation error:
-  }
-  {
-    const x = 1;
+
     const C.cc03(2, x);
     // [error column 5, length 18]
     // [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION
     //    ^
     // [cfe] Constant evaluation error:
-  }
-  {
-    const x = 1;
+
     const C.cc04(2, x);
     // [error column 5, length 18]
     // [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION
     //    ^
     // [cfe] Constant evaluation error:
-  }
-  {
-    const x = 1;
+
     const C.cc05(2, x);
     // [error column 5, length 18]
     // [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION
     //    ^
     // [cfe] Constant evaluation error:
-  }
-  {
-    const x = 1;
+
     const C.cc06(2, x);
     // [error column 5, length 18]
     // [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION
     //    ^
     // [cfe] Constant evaluation error:
-  }
-  {
-    const x = 1;
+
     const C.cc07(2, x);
     // [error column 5, length 18]
     // [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION
     //    ^
     // [cfe] Constant evaluation error:
-  }
-  {
-    const x = 1;
+
     const C.cc08(2, x);
     // [error column 5, length 18]
     // [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION
     //    ^
     // [cfe] Constant evaluation error:
-  }
-  {
-    const x = 1;
+
     const C.cc09(2, x);
     // [error column 5, length 18]
     // [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION
     //    ^
     // [cfe] Constant evaluation error:
-  }
-  {
-    const x = 1;
+
     const C.cc10(2, x);
     // [error column 5, length 18]
     // [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION