src/jdk.compiler/share/classes/com/sun/tools/javac/code/Source.java

*** 197,207 ****
          VAR_SYNTAX_IMPLICIT_LAMBDAS(JDK11, Fragments.FeatureVarSyntaxInImplicitLambda, DiagKind.PLURAL),
          IMPORT_ON_DEMAND_OBSERVABLE_PACKAGES(JDK1_2, JDK8),
          SWITCH_MULTIPLE_CASE_LABELS(JDK14, Fragments.FeatureMultipleCaseLabels, DiagKind.PLURAL),
          SWITCH_RULE(JDK14, Fragments.FeatureSwitchRules, DiagKind.PLURAL),
          SWITCH_EXPRESSION(JDK14, Fragments.FeatureSwitchExpressions, DiagKind.PLURAL),
!         TEXT_BLOCKS(JDK14, Fragments.FeatureTextBlocks, DiagKind.PLURAL);
  
          enum DiagKind {
              NORMAL,
              PLURAL;
          }
--- 197,208 ----
          VAR_SYNTAX_IMPLICIT_LAMBDAS(JDK11, Fragments.FeatureVarSyntaxInImplicitLambda, DiagKind.PLURAL),
          IMPORT_ON_DEMAND_OBSERVABLE_PACKAGES(JDK1_2, JDK8),
          SWITCH_MULTIPLE_CASE_LABELS(JDK14, Fragments.FeatureMultipleCaseLabels, DiagKind.PLURAL),
          SWITCH_RULE(JDK14, Fragments.FeatureSwitchRules, DiagKind.PLURAL),
          SWITCH_EXPRESSION(JDK14, Fragments.FeatureSwitchExpressions, DiagKind.PLURAL),
!         TEXT_BLOCKS(JDK14, Fragments.FeatureTextBlocks, DiagKind.PLURAL),
!         INLINE_TYPES(JDK14, Fragments.FeatureInlineType, DiagKind.NORMAL);
  
          enum DiagKind {
              NORMAL,
              PLURAL;
          }