textDocument/signatureHelp broken if previous string parameter has ( or {

[yyoncho]

foo ("(", |);

The textDocument/signatureHelp returns empty signature with cursor on |.

[fbricon]

Can you provide a fully functional test class?

[yyoncho]

/**
 * Bar
 */
public class Bar {

	public void foo(String p, int x) {
        foo("(", |)
    }
}

[snjeza]

Related issue - #1290

long num = 10;
assertEquals(num, num);

#1290 (comment)