[jnimarshalmethod-gen] optimize type lookup

[radekdoulik]

Create a dictionary of cecil types at the beginning, instead of
searching through the whole module every time we need to find a type.

That saves about 12 seconds from 48, when running it on
Mono.Android.dll

Output of the time command:

Before       47.67 real        47.90 user         2.00 sys
After        35.52 real        35.57 user         2.07 sys

[jonpryor]

hat saves about 12 seconds from 48

In what context? Is this jnimarshalmethod-gen.exe execution time? Something else?

[radekdoulik]

Yes, execution time measured by time command.

Before       47.67 real        47.90 user         2.00 sys
After        35.52 real        35.57 user         2.07 sys