LSP: Can't rename if the server getting position that is not the end of word.

[LumaKernel]

I will make #572 clearer.

Please consider below file for example.

model Post {
    id        Int               @id @default(autoincrement())
    author    User? @relation(fields: [authorId], references: [id])
    //        ^ Cursor is here and rename to "Customer"
    authorId  Int?
}

model User {
    id        Int      @id @default(autoincrement())
    posts     Post[]
}

VSCode

model Post {
    id        Int               @id @default(autoincrement())
    author    User? @relation(fields: [authorId], references: [id])
    //            ^ VSCode will send this position to LSP
    authorId  Int?
}

model User {
    id        Int      @id @default(autoincrement())
    posts     Post[]
}

some clients like vim-lsp

model Post {
    id        Int               @id @default(autoincrement())
    author    User? @relation(fields: [authorId], references: [id])
    //        ^ vim-lsp sends this position if cursor is here
    authorId  Int?
}

model User {
    id        Int      @id @default(autoincrement())
    posts     Post[]
}

This causes...

Customermodel Post {
    id        Int               @id @default(autoincrement())
    author    User? @relation(fields: [authorId], references: [id])
    //        ^ vim-lsp sends this position if cursor is here
    authorId  Int?
	@@map("")
}

model User {
    id        Int      @id @default(autoincrement())
    posts     Post[]
}

Note: It's tested with commenting out console.log around renaming because vim-lsp stuck with broken response from this LSP ( #571 ).

Expected one is...

model Post {
    id        Int               @id @default(autoincrement())
    author    Customer? @relation(fields: [authorId], references: [id])
    //        ^ vim-lsp sends this points if cursor is here
    authorId  Int?
}

model Customer {
    id        Int      @id @default(autoincrement())
    posts     Post[]
	@@map("User")
}