Debugger: Add breakpoint applicability tests

This commit adds a number of tests that check breakpoint placing behavior, and an inline action that work the same way as tests.

idea/testData/debugger/breakpointApplicability/constructors.kt

@@ -0,0 +1,39 @@
+// Should stop on primary constructor invocation
+class Foo1(val a: Int) /// M
+
+class Foo2( /// M
+    val a: Int, /// F
+    val b: String /// F
+)
+
+class Foo3(val a: Int) { /// M
+    constructor(a: String) : this(a.toInt()) /// M
+}
+
+// Initializers are not currently recognized as functions
+class Foo4 { /// M
+    init { /// L
+        println() /// L
+    } /// L
+}
+
+class Foo5 {
+    constructor(a: String) {} /// M
+    constructor(a: Int) {} /// M
+}
+
+interface Intf
+
+annotation class Anno
+
+enum class Enum1 { /// M
+    FOO
+}
+
+enum class Enum2(val a: Int) { /// M
+    FOO(1)
+}
+
+object Obj1
+
+object Obj2 {}