Never detect words in foo.bar constructs as keywords

Refs #812

Author: nene

src/lexer/disambiguateTokens.ts

@@ -31,6 +31,10 @@ const propertyNameKeywordToIdent = (token: Token, i: number, tokens: Token[]): T
     if (prevToken && prevToken.type === TokenType.PROPERTY_ACCESS_OPERATOR) {
       return { ...token, type: TokenType.IDENTIFIER, text: token.raw };
     }
+    const nextToken = nextNonCommentToken(tokens, i);
+    if (nextToken && nextToken.type === TokenType.PROPERTY_ACCESS_OPERATOR) {
+      return { ...token, type: TokenType.IDENTIFIER, text: token.raw };
+    }
   }
   return token;
 };

test/options/keywordCase.ts

@@ -62,6 +62,18 @@ export default function supportsKeywordCase(format: FormatFn) {
     `);
   });
 
+  it('treats dot-seperated keywords as plain identifiers', () => {
+    const result = format('select table.and from set.select', {
+      keywordCase: 'upper',
+    });
+    expect(result).toBe(dedent`
+      SELECT
+        table.and
+      FROM
+        set.select
+    `);
+  });
+
   // regression test for #356
   it('formats multi-word reserved clauses into single line', () => {
     const result = format(