Tests single resource search in inspector page agent.

http://127.0.0.1:8000/devtools/search/resources/search.js
Search matches: 
lineNumber: 0, line: 'function searchTestUniqueString()'
lineNumber: 3, line: '    // searchTestUniqueString two occurences on the same line searchTestUniqueString'
lineNumber: 3, line: '    // searchTestUniqueString two occurences on the same line searchTestUniqueString'
lineNumber: 4, line: '    // searchTestUniqueString on the next line.'
lineNumber: 10, line: '    searchTestUniqueString();'
lineNumber: 11, line: '    // SEARCHTestUniqueString();'

Search matches: 
lineNumber: 0, line: 'function searchTestUniqueString()'
lineNumber: 3, line: '    // searchTestUniqueString two occurences on the same line searchTestUniqueString'
lineNumber: 3, line: '    // searchTestUniqueString two occurences on the same line searchTestUniqueString'
lineNumber: 4, line: '    // searchTestUniqueString on the next line.'
lineNumber: 10, line: '    searchTestUniqueString();'

Search matches: 
lineNumber: 0, line: 'function searchTestUniqueString()'
lineNumber: 3, line: '    // searchTestUniqueString two occurences on the same line searchTestUniqueString'
lineNumber: 3, line: '    // searchTestUniqueString two occurences on the same line searchTestUniqueString'
lineNumber: 4, line: '    // searchTestUniqueString on the next line.'
lineNumber: 10, line: '    searchTestUniqueString();'
lineNumber: 11, line: '    // SEARCHTestUniqueString();'

Search matches: 
lineNumber: 0, line: 'function searchTestUniqueString()'
lineNumber: 3, line: '    // searchTestUniqueString two occurences on the same line searchTestUniqueString'
lineNumber: 3, line: '    // searchTestUniqueString two occurences on the same line searchTestUniqueString'
lineNumber: 4, line: '    // searchTestUniqueString on the next line.'
lineNumber: 10, line: '    searchTestUniqueString();'