Add tests

Author: a-tarasyuk

tests/baselines/reference/optionsStrictPropertyInitializationStrictNullChecks.errors.txt

@@ -0,0 +1,7 @@
+error TS5052: Option 'strictPropertyInitialization' cannot be specified without specifying option 'strictNullChecks'.
+
+
+!!! error TS5052: Option 'strictPropertyInitialization' cannot be specified without specifying option 'strictNullChecks'.
+==== tests/cases/compiler/optionsStrictPropertyInitializationStrictNullChecks.ts (0 errors) ====
+    var x;
+    

tests/baselines/reference/optionsStrictPropertyInitializationStrictNullChecks.js

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+//// [optionsStrictPropertyInitializationStrictNullChecks.ts]
+var x;
+
+
+//// [optionsStrictPropertyInitializationStrictNullChecks.js]
+var x;

tests/baselines/reference/optionsStrictPropertyInitializationStrictNullChecks.symbols

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+=== tests/cases/compiler/optionsStrictPropertyInitializationStrictNullChecks.ts ===
+var x;
+>x : Symbol(x, Decl(optionsStrictPropertyInitializationStrictNullChecks.ts, 0, 3))
+

tests/baselines/reference/optionsStrictPropertyInitializationStrictNullChecks.types

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+=== tests/cases/compiler/optionsStrictPropertyInitializationStrictNullChecks.ts ===
+var x;
+>x : any
+

tests/cases/compiler/optionsStrictPropertyInitializationStrictNullChecks.ts

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+// @strictPropertyInitialization: true
+
+var x;