type_checker_perf tests should require no_asan

Fixes rdar://problem/138246764.

Author: slavapestov

validation-test/Sema/type_checker_perf/fast/borderline_flat_map_operator_mix.swift

@@ -1,5 +1,7 @@
 // RUN: %target-typecheck-verify-swift -solver-expression-time-threshold=10
 
+// REQUIRES: no_asan
+
 struct S {
     var t: Double
 

validation-test/Sema/type_checker_perf/slow/coerce_literal_linear_combo.swift.gyb

@@ -1,5 +1,7 @@
 // RUN: %scale-test --invert-result --begin 2 --end 5 --step 1 --select NumLeafScopes %s
 
+// REQUIRES: no_asan
+
 func g<T: Equatable>(_: T, _: T) {}
 
 let base: UInt64 = 0

validation-test/Sema/type_checker_perf/slow/simd_scalar_multiple.swift.gyb

@@ -1,5 +1,7 @@
 // RUN: %scale-test --invert-result --begin 1 --end 5 --step 1 --select NumLeafScopes %s
 
+// REQUIRES: no_asan
+
 func f(c: Float, a: SIMD2<Float>) -> SIMD2<Float> {
   return (c * a)
 %for i in range(1, N):