Implement inspection for declarations with implicit platform types #KT-12310 Fixed

(cherry picked from commit 00d8c26)

idea/testData/inspections/hasPlatformType/function.kt

@@ -0,0 +1,3 @@
+// WITH_RUNTIME
+
+fun foo() = java.lang.String.valueOf(1)

idea/testData/inspections/hasPlatformType/inspectionData/expected.xml

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+<problems>
+    <problem>
+        <file>function.kt</file>
+        <line>3</line>
+        <module>light_idea_test_case</module>
+        <entry_point TYPE="file" FQNAME="temp:///src/function.kt" />
+        <problem_class severity="WARNING" attribute_key="WARNING_ATTRIBUTES">Function, property or variable has platform type.</problem_class>
+        <description>Function has platform type. Make the type explicit to prevent subtle bugs.</description>
+    </problem>
+    <problem>
+        <file>property1.kt</file>
+        <line>3</line>
+        <module>light_idea_test_case</module>
+        <entry_point TYPE="file" FQNAME="temp:///src/property1.kt" />
+        <problem_class severity="WARNING" attribute_key="WARNING_ATTRIBUTES">Function, property or variable has platform type.</problem_class>
+        <description>Property has platform type. Make the type explicit to prevent subtle bugs.</description>
+    </problem>
+    <problem>
+        <file>property2.kt</file>
+        <line>3</line>
+        <module>light_idea_test_case</module>
+        <entry_point TYPE="file" FQNAME="temp:///src/property2.kt" />
+        <problem_class severity="WARNING" attribute_key="WARNING_ATTRIBUTES">Function, property or variable has platform type.</problem_class>
+        <description>Property has platform type. Make the type explicit to prevent subtle bugs.</description>
+    </problem>
+</problems>

idea/testData/inspections/hasPlatformType/inspectionData/inspections.test

@@ -0,0 +1 @@
+// INSPECTION_CLASS: org.jetbrains.kotlin.idea.inspections.HasPlatformTypeInspection

idea/testData/inspections/hasPlatformType/local.kt

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+// WITH_RUNTIME
+
+fun foo() {
+    val local = java.lang.String.valueOf(1)
+
+    fun bar() = java.lang.String.valueOf(2)
+
+    class Local {
+        val local = java.lang.String.valueOf(3)
+
+        fun bar() = java.lang.String.valueOf(4)
+    }
+}

idea/testData/inspections/hasPlatformType/property1.kt

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+// WITH_RUNTIME
+
+val bar = java.lang.String.valueOf(1)

idea/testData/inspections/hasPlatformType/property2.kt

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+// WITH_RUNTIME
+
+val list = arrayOf(java.lang.String.valueOf(1))

idea/testData/inspections/hasPlatformType/star.kt

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+// WITH_RUNTIME
+
+class Wrapper<T>(val value: T)
+
+fun star(): Wrapper<Wrapper<*>> = Wrapper(Wrapper(Any()))
+
+fun star2(): List<*> = listOf(Any())