Address comments

bundle/internal/schema/main.go

@@ -22,14 +22,17 @@ func addInterpolationPatterns(typ reflect.Type, s jsonschema.Schema) jsonschema.
 	}
 
 	// The variables block in a target override allows for directly specifying
-	// the value if it is a primitive type.
+	// the value of the variable.
 	if typ == reflect.TypeOf(variable.TargetVariable{}) {
 		return jsonschema.Schema{
-			AnyOf: []jsonschema.Schema{s,
-				{Type: jsonschema.StringType},
-				{Type: jsonschema.BooleanType},
-				{Type: jsonschema.IntegerType},
-				{Type: jsonschema.NumberType},
+			AnyOf: []jsonschema.Schema{
+				// We keep the original schema so that autocomplete suggestions
+				// continue to work.
+				s,
+				// All values are valid for a variable value, be it primitive types
+				// like string/bool or complex ones like objects/arrays. Thus we override
+				// the schema to allow all valid JSON values.
+				{},
 			},
 		}
 	}
@@ -38,16 +41,19 @@ func addInterpolationPatterns(typ reflect.Type, s jsonschema.Schema) jsonschema.
 	case jsonschema.ArrayType, jsonschema.ObjectType:
 		// arrays and objects can have complex variable values specified.
 		return jsonschema.Schema{
-			AnyOf: []jsonschema.Schema{s, {
-				Type:    jsonschema.StringType,
-				Pattern: interpolationPattern("var"),
-			}},
+			AnyOf: []jsonschema.Schema{
+				s,
+				{
+					Type:    jsonschema.StringType,
+					Pattern: interpolationPattern("var"),
+				}},
 		}
 	case jsonschema.IntegerType, jsonschema.NumberType, jsonschema.BooleanType:
 		// primitives can have variable values, or references like ${bundle.xyz}
 		// or ${workspace.xyz}
 		return jsonschema.Schema{
-			AnyOf: []jsonschema.Schema{s,
+			AnyOf: []jsonschema.Schema{
+				s,
 				{Type: jsonschema.StringType, Pattern: interpolationPattern("resources")},
 				{Type: jsonschema.StringType, Pattern: interpolationPattern("bundle")},
 				{Type: jsonschema.StringType, Pattern: interpolationPattern("workspace")},