Update Object display to use CurrentUICulture.
Ensure that VB tests run.

now, we will automatically re-enable full solution analysis (if user didn't explicitly disabled it) when new solution is opened.

experience seems actually quite better than before.

anyway, 2 main changes are

1. active file analysis delay got shorten to 400ms from 800ms.
2. notification to editor on removed tags are now 50ms but added tags are now 1.5 seconds.

...

more detail explanations below

for #1. the delay change is only for 1 file (a file that has focus). all other file analysis delay is same as before (1.5 seconds). so I believe perf impact due to this should be fairly small. and it is still better than RTM which was 200ms. also, after RTM, we already made LB behavior not to be affected by this delay. so this change shouldn't affect LB behavior.

for #2. tagger actually has many small delays in them.
2 main ones are

1) delay to produce tags
2) delay to notify editor about changed tags.

1) is to reduce doing repeated works to generate tags. for diagnostic tagger, this actually is not needed since unlike any other tagger, diagnostic tagger uses external service (diagnostic service) which already does all these things (basically #1 delay is logically doing what 1) is trying to do)

now 1) delay is set to NearImmediate (50ms)

2) is to prevent us from abusing editors too much with a lot of notifications. basically this delay make sure we only ping editor once in a while (used to be 50ms) and aggregate events between them.

now, 2) is split into 2 different delays. one for adding new tags and the other for removing old tags.

adding new tags is now set to 1.5 seconds and removing old tags is set to 50ms.

by removing `<DebugType>` lines from projects that import `VSL.Settings.targets`

When the REPL displays the output information it gets presented in the
culture of the running submission.

This reverts commit 3cdf9b45 for readability issue.

Fixes #7101.

user can either explicitly turn it back on or re-start VS to re-enable the full solution analysis.

changed meaning of closed file diagnostic option. now it is solely for performance. when the option is off, we will only do very minimum work for diagnostics for smal scope such as opened files.

Strengthen implementation of MetadataHelpers.GetInfoForImmediateNamespaceMembers against unconventional/obfuscated namespace names in metadata.

Fixes #7396.

The original commit didn't take into account that /utf8output could appear in a response file.  Properly handling such a case in BuildClient would require moving all of the argument parsing code up to that layer which seems very inappropriate.  Instead pushed it back down to the compilers and let them guard against custom streams + utf8output (which doesnt't work) by comparing the provided TextWriter to Console.Out.

No need to build a dummy compilation.  We'll already have one created for making the symbol index for the source of this project.

Break SymbolReferenceFinder into its own class.  This makes the merge with another branch much cleaner.

Do not keep around references to Project instances.  We can just use the semantic version of the project to know if we need to reprocess it.