JVM IR: Fix generation of parameterless default constructor

The JVM backend does not generate parameterless default constructors for
private constructors and constructors of local, inner, or inline
classes.

compiler/testData/codegen/bytecodeText/constructors/inlinePrimaryDefaults.kt

@@ -0,0 +1,13 @@
+inline class A(val x: Int = 0)
+
+// 0 <init>\(\)V
+// 1 private synthetic <init>\(I\)V
+// 1 public final static synthetic box-impl\(I\)LA;
+
+// JVM_TEMPLATES
+// 1 public static constructor-impl\(I\)I
+// 1 public static synthetic constructor-impl\$default\(IILkotlin/jvm/internal/DefaultConstructorMarker;\)I
+
+// JVM_IR_TEMPLATES
+// 1 public final static constructor-impl\(I\)I
+// 1 public static synthetic constructor-impl\$default\(IILjava/lang/Object;\)I