Make candidates lazy in ResolutionTask & ResolutionTaskHolder

compiler/testData/codegen/box/regressions/kt6153.kt

@@ -0,0 +1,15 @@
+// KT-6153 java.lang.IllegalStateException while building
+object Bug {
+    fun title(id:Int) = when (id) {
+        0 -> "OK"
+        else -> throw Exception("unsupported $id")
+    }
+
+    private fun <T> T.header(id: Int) = StringBuilder().append(title(id))
+
+    fun run() = header(0)
+}
+
+fun box(): String {
+    return Bug.run().toString()
+}